Shepard, S. (1975). Action and the unseen hand. Faber&Faber.
Citación estilo ChicagoShepard, Sam,1943-. Action and the Unseen Hand. London: Faber&Faber, 1975.
Cita MLAShepard, Sam,1943-. Action and the Unseen Hand. Faber&Faber, 1975.
Warning: These citations may not always be 100% accurate.